On Mon, May 30, 2011 at 6:03 PM, Santosh Shilimkar <santosh.shilimkar@xxxxxx> wrote: > While trying out V3.0-rc1, I noticed couple of regressions. Am > posting this in case anybody come across same issues. > > 1.OMAP MMC code keep throwing "Pbias Voltage is not same as LDO" error > continuously. > > Balaji is planning post right fix for the same, but just > in case you get around this issue, > Hi Santosh, You can find MMC pbias fix here http://www.spinics.net/lists/linux-omap/msg51735.html > diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c > index b2f30be..94ae400 100644 > --- a/arch/arm/mach-omap2/hsmmc.c > +++ b/arch/arm/mach-omap2/hsmmc.c > @@ -145,6 +145,7 @@ static void omap4_hsmmc1_after_set_reg(struct device > *dev, int slot, > int power_on, int vdd) > { > u32 reg; > + unsigned long timeout; > > if (power_on) { > reg = omap4_ctrl_pad_readl(control_pbias_offset); > @@ -158,7 +159,14 @@ static void omap4_hsmmc1_after_set_reg(struct device > *dev, int slot, > OMAP4_USBC1_ICUSB_PWRDNZ_MASK); > omap4_ctrl_pad_writel(reg, control_pbias_offset); > /* 4 microsec delay for comparator to generate an error*/ > - udelay(4); > + timeout = jiffies + msecs_to_jiffies(500); > + do { > + reg = omap4_ctrl_pad_readl(control_pbias_offset); > + if (!(reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK)) > + break; > + mdelay(1); > + } while (!time_after(jiffies, timeout)); > + > reg = omap4_ctrl_pad_readl(control_pbias_offset); > if (reg & OMAP4_MMC1_PBIASLITE_VMODE_ERROR_MASK) { > pr_err("Pbias Voltage is not same as LDO\n"); > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
